Lower Parts
Looking to get new parts for your AR's lower receiver. This is the place to look, with hundreds of parts from stocks and grips to a new mag release button. Shop with Grid Defense to customize and build the best lower receiver you can. Make your firearm look, feel, and perform the best with our selection of OE and aftermarket parts.
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Armaspec Spare Parts Kit
$15.99Armaspec Spare Parts Kit Lower Parts For: AR-15 and 7.62/.308 AR's Constructed From Stainless Steel Includes: 3 Pivot/Takedown Pin Detents 3 Pivot/Takedown Pin Springs 1 Safety Selector Detent And Spring 1 Buffer Retainer...$15.99 -
Out of stock
SKELETONIZED ELITE TRIGGER GUARD - BLUE TITANIUM
$25.99PREMIUM SKELETONIZED ELITE TRIGGER GUARD - BLUE TITANIUM This Skeletonized trigger guard is the premium option from the Vital trigger guard that comes standard with all completed lowers. With it's slim design, it offers coverage where it is needed...$25.99 -
TIMBER CREEK AR OVERSIZED TRIGGER GUARD - FLAT DARK EARTH
$23.99OVERSIZED AR TRIGGER GUARD - FLAT DARK EARTH Lightweight 0.4oz. Drop in replacement More space large or gloved hand Manufactured BY Timber Creek Outdoors, Inc.$23.99 -
TIMBER CREEK ENFORCER AR PISTOL GRIP - TUNGSTEN
$99.99TIMBER CREEK ENFORCER AR PISTOL GRIP - TUNGSTEN Skeletonized Lightweight pistol grip Cerakote finish Drop in replacement mounts to all standard lower receivers Weighing in at just over 4oz$99.99 -
Out of stock
Adaptive Tactical EX Performance Stock - Black
$59.99Adaptive Tactical EX Performance Stock - Black Ideal upgrade for your AR15 or AR10 M4-style stock with adjustable length-of-pull Compatible with Mil-Spec sized extension tubes Sleek design$59.99 -
CMC AR-15 Match Curved Trigger - 3.5LB
$189.99CMC AR-15 CURVED MATCH TRIGGER FEATURES Single Stage Match Trigger Multiple trigger pull weights Ultra-crisp trigger with no feel of creep prior to hammer release Trigger has glass-smooth break with no feel of grittiness Minimal lock time is...$189.99 -
Out of stock
Ghost Grip - Sig Pink
$19.99The Ghost Grip is designed for Made In the USA Made From: reinforced Plastic composite Slim Lightweight Design Incorporates finger groves to insure a tight and comfortable hold Ghost "G" Engraved into the left hand side of the...$19.99 -
On Sale
Grid Defense AR-15 80% Lower Receiver Without Fire/Safe Engravings - Blue Titanium
Sale: $69.00MSRP: $170.00Grid Defense AR-15 80% Lower Receiver without Fire/Safe Engravings - Blue Titanium Machined from 7075-T6 Aluminum Forging Finished in Blue Titanium Cerakote Flared and broached magazine well Rear upper lug pocket cut out Fits all mil-spec upper...Sale: $69.00MSRP: $170.00 -
On Sale
Strike Industries AR-15 Enhanced Bolt Catch - Black
Sale: $14.95MSRP: $15.95Strike Industries AR-15 Enhanced Bolt Catch - Black Mil-Spec Bolt Catch Wide Surface Area Bolt Catch Latch for Enhanced Operation Solid Steel Construction Sleek SI DesignSale: $14.95MSRP: $15.95 -
On Sale
Tactical Dynamics Skeleton Stock - OD Green
Sale: $56.00MSRP: $109.00Tactical Dynamics Skeleton Stock Finished in Magpul Olive Drab Green Cerakote Made in the USA Compatible with Milspec Carbine Buffer Tube Machined from 6061-T6 Aluminum Specs 6 3/4" Long 5 1/4" Contact Area 1 1/4" Wide 9.65ozSale: $56.00MSRP: $109.00 -
Out of stock
ATI Outdoors AR-15 Classic Pistol Grip - Black
$14.99ATI Outdoors AR-15 Classic Pistol Grip - Black Fits AR-15/AR-10 Fits the Ruger 22 Charger Pistol with AR-15 Style Grip DuPont(R) Extreme Temperature Glass Reinforced Polymer Scratch & weatherproof$14.99 -
On Sale
Blem AR-15 80% Fire/Safe Lower Receiver With Mil-Spec Upper Receiver - FDE Anodize
Sale: $90.00MSRP: $244.95Blem AR-15 80% Fire/Safe Lower Receiver With Mil-Spec Upper Receiver - FDE Anodize AR-15 80% Fire/Safe Lower Receiver Machined from 7075-T6 Aluminum Forging FDE Hard Coat Anodize Flared and broached magazine well Rear upper lug pocket cut...Sale: $90.00MSRP: $244.95 -
Out of stockOn Sale
Ghost Grip - Ridgeway Blue
Sale: $8.99MSRP: $19.99The Ghost Grip is designed for Made In the USA Made From: reinforced Plastic composite Slim Lightweight Design Incorporates finger groves to insure a tight and comfortable hold Ghost "G" Engraved into the left hand side of...Sale: $8.99MSRP: $19.99 -
Out of stock
Grid Defense 9mm Lower Parts Kit
$14.98Grid Defense 9mm Lower Parts Kit Ejector 2 Ejector Set Screws Magazine Release Button Magazine Release Button Roll Pin Magazine Release Spring IF YOU PURCHASE A GRID DEFENSE 9MM 80% LOWER RECEIVER THIS KIT IS INCLUDED IN THAT PURCHASE. THIS KIT...$14.98 -
On Sale
Grid Defense Lightweight Billet Aluminum Stock
Sale: $60.00MSRP: $100.00Lightweight Billet Aluminum Stock Weight: 11.2 ounces Featureless design for compliance with state laws Precision-machined from 6061-T6 billet aluminum Featureless design for compliance with state laws Compatible with Mil-Spec buffer tubes Thread...Sale: $60.00MSRP: $100.00 -
Out of stock
Odin Works XMR3 Extended Mag Release - Gen 3
$22.00Odin Works XMR3 Extended Mag Release - Gen 3 Compatible with BAD Lever Compatible with KNS Pins .1 oz (including paddle, button, and screws) Large surface area for quick magazine reloads Easy to reach Ergonomic design Release magazine without changing...$22.00 -
Out of stock
STRIKE INDUSTRIES AMBI MAGAZINE RELEASE - FDE
$39.95Strike Industries AMBI Magazine Release Made in USA Low Profile and Ergonomically Designed Includes Enhanced Magazine Release Button and Spring for Complete Drop-in Upgrade Ambidextrous for The Left and Right Handed Shooters Manufactured by Strike...$39.95 -
TIMBER CREEK AR MAGAZINE RELEASE BUTTON - TUNGSTEN
$7.99AR MAG RELEASE BUTTON - MAGAZINE CATCH BUTTON - TUNGSTEN Tungsten Gray Cerakote finish Compatible with all Milspec lowers Lightweight aluminum Made in the USA$7.99 -
Out of stock
Bravo Company Trigger Guard Mod 0 - FDE
$8.00Bravo Company Trigger Guard Mod 0 - FDE Ergonomically correct shape and contour No sharp edges, Compatible with "duck-billed" grips Made of impact resistant polymer$8.00 -
Out of stock
Magpul Enhanced AR Magazine Release - Black
$19.95Magpul Enhanced AR Magazine Release - Black Machined from milspec anodized aluminum Provides larger contact surface for positive activation Compatible with most 5.56 and 7.62 pattern receivers$19.95